Window fastener



7 Nov. :25, 1930; A. HOFFMAN 1,782,896

' WINDOW FASTENER Filed July 15, 1927 2 Sheets-Sheet 1 Nov. 25, 1930. A. HOFFMAN ,8 5

wnm ow FASTENER Filed Ju ly 15, 1927 a Shani-Sheet 2 Patented Nov. 25,1930

ANDREW HOFFMAN, on cHIcAGo,

whether in-swingiing,

FACTURING COMPANY, OF CHICAGO, ILLINOIS, A COBIORATIQN OF ILLINOIS WINDOW FASTENER The purpose of this an improved window fastener which is sirn ple in construction, pleasing in appearance; inexpensive to manufacture, efiicient in operation, and of universal application.

fastener embodying'the invention may be used on all kinds f casement windows, out-swinging, right swinging, on leftswinging, and may also be used on double-hung windows, doors, trap doors, and the like.

tion will lee-apparent uponafull understanding the invention;

jOther objects and advantages of theinvening ofthe construction, erationof the fastenen; e p One form of the invention is presented herein for the purpose of exemplification,-but it willoi? coure be appreciated that the invenarrangement and option is susceptible of embodiment injother slightlymodified forms coming equally with in thescope of the claims. e

In the drawings: H Fig.1 is a front View of a fastener embody Fig.2 is a vertical section, taken on the line2 -2of=Fig.1;" Fig. 3 is a horizontal section, takenon the line 3-1301: Fig. 1; I 1

Fig. 1 isja. horizontal out-and-right swinging casement window to; which the fastener is-applied Fig.5 is a .vertical section, taken bathe line 5-5 ;ofF1g.4;

1 Fig. 6 is a horizontal section; through an out-and-left 'SWiIlglDg casement Window to which the same fastener is applied; a I

Fig. 7 isa vertical section taken on the line 7 70fFig,6;-

"Fig. 8 is a hdrizontatlfsectbn through an inai1d-i'ight swinging casenient window to whichthe samefastener isapplied'; Fig. 9 is a'vertical section taken on the line Fig. 10 is a horizontalisection through an in-and left swinging casement window to which the same fastener is applied; Y

FigQ-ll is a vertical section, takenon the linell-ll ofFig. l0; p a 1 I Fig. 12 is a fragmentary front View of a inventionisto provide section through an \toafi'ord two in faces 16 and 1 7,jone of which will earn the striketoward each other when the head is turned in one direction, and -theother of which'will perform the same fastener and the Application filed duly 15, 1927.1 ser aifnazoaaza ILLINOIS, ASSIGNOR TO (ANDREW IHOFEMAN Immipartly open doublediung window i the same fastener is'applied;

'Fig. 13 is a vertical'section, taken on" the line 13- -13 of Fig. 12;

gFig. let is a similar dow closed? e 1 Fig. 15 is a vertica 15--150fFig.14; M e e Fig. leis a perspective View of the fastener;

View showing the win leseaion takea bathe line I Fig? 17 is a perspective View of one form of strike used with the fastener; and 1 F ig.18 is a perspective View of another form of strike used with the fastener. n M

The fastener illustratedinthe, drawings consists of a bracket 10, a stem 11 rotatably mounted in the bracket, a handle '12 secured to one end of the stern, and a head 13 secured to the other end of the stem. The fastener is adapted to a strike 14, and, when the 1 fastener {and the strike are applied to two relativelymovable members, as for instance the stile of acasement window and the jamb of the surrounding window frame, theyare so arrangedthat The head 13 is providedwith a flange '15 cooperate with I the axisof the strike occupies 'aposition'inthe plane of movement of the axis of the stems whichprojects from one side of the head in parallel relation to the axis of the stem. The flange 15 is curved OIlyiL radius passing on the opposite side 'of'such'axis, whereby 'clined' strike-engaging surfunction when the head is turned in theother direction. I I I When the head is 18 0f the flange, which surface is midway between the surfaces 16 and- 17 and is nearest the axis of the stem, a stable associationbetween thestrike and the head will result, since any forces tending to separate the strike and turned far enough to carn' the strikeinto engagementwith the surface through the; axis of the stem about a center engagement with the surface 18 of the flange of the head, the head must be turned positively by the handle.

The strike 14 consists of a round stud which projects from a plate 19, the plate being attached to the jamb or other member by screws which pass through apertures 20 in the plate. Instead of projecting directly from the plate, as shown in Fig. 17, the stud may project from a. rearwardly and laterally otiset portion 21 of the plate, as shown in Fig. 18, whereby to hold the stud in a. position behind the plane of the plate, which modification in the form of the strike permits the same fastener to. be used with an iii-swinging as well as with an out-swinging window.

he handle 12, which turns the head of the fastener, is shaped like a ring at its free end, in order to present a conveniently shaped fingerengaging portion 22, which portion may be engaged easily by acurtain pole when the fastener is used in a location where it is difficult to reach.

The bracket 10 is of extremely simple construction, being a single strip which is bent intermediate its ends to form a stem-j ourn'alling loop in offset relation to such ends. The bracket is attached to the stile or other member by screws which pass through apertures 23 in. the ends of the strip.

In Figs. 4, 6, 8 and 10 the same fastener is shown as applied respectively to an outand-right swinging, an out-and-left swinging, and in-and-right swinging and an in and-left swinging casement window, and in Fig. 12 the same fastener is shown as applied to a double-hung window. In Fig. 4, the handle swings downwardly in latching the fastener, in Fig. 6 it swings upwardly, in Fig. 8 it swings upwardly, in Fig'lO. it swing s downwardly, and in Fig. 12 it swings downwardly.

I claim:

1. In a latch, a strike which is adapted to be mounted on one of two relatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket, a head secured to the stem for coaction with the strike, and a handle for turning the head, said head having a flange which is generally parallel to the axis of the stem and is curved on a radius passing through such axis about a center on the opposite side of the same.

2. In a latch, a strike which is adapted to' be mounted on one of two relatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket, a head socured to one end of the stem for coaction with the strike, and a handle secured to the other end of the stem for turning the same, said head'hav'ing a flange which is generally parallel to the axis of the stem and is curved on a radius passing through such axis about a center on the opposite side of the same.

8. In a latch, a strike which is adapted to be mounted on one of two relatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket in axial alignment with the strike, a head secured to one end of the stem for coaction with the strike, and a handle secured to the other end of the stem for turning the same, said head having a flange which is shaped to provide two strike-camming surfaces, one of which will cam the strike and head toward each other when the handle is turned in one direction, and the other of which will cam the strike and head toward each other when the handle is turned in the other direction.

4. In a latch, a pivoted head, and a strike for coaction therewith, said strike consisting of a plate having a flat attaching portion and another portion in rearwardly offset parallel relation to the attaching portion, and a stud projecting from the oifset portion toward the plane of the attaching port-1011.

5. In a latch, a strike which is adapted to be mounted 011 one of two relatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket, aheadsecured to the stem for coaction with the strike, and a handle for turning the head, said head having a strike-engaging portion which is curved on a radius passing through the axis of the stem about a center on the opposite side of such axis.

6. In a latch, a strike which is adapted to be mounted on one of two relatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket in axial alignment with the strike, a head secured to one end of the stem for coaction with the strike, and a handle for turning the head, said head having a strike-engaging portion which is shaped to provide two oppositelyextending and symmetrically-arranged cam surfaces, one of which will cam the strike and head toward each other when the handle is turned in one direction, and the other of which will cam the strike and head toward each other when the handle is turned in the other direction.

7. In a latch, a pivoted head. and a strike for coaction therewith, said strike consisting of a plate having a flat attaching portion and another portion inrearwardly offset relation to the attaching portion, and a stud projecting from the offset portion toward the plane of the attaching portion and terminating adjacent the plane of the attaching portion.

8. In a latch, a strike which is adapted to be mounted on one of tworelatively movable members, a bracket which is adapted to be mounted on the other of said members, a stem rotatably mounted in the bracket, a head secured to the stem for coaction with the strike, and a handle for turning the head, i said head having a curved strike-engaging portion Which isoflset from the axis 'of the stem and is tangential with but of less curvature than an are about such axis at that point;-

In'testirhony whereof I have hereunto subscribed name.

' ANDRE'W HOFFMAN. 

